EFFICIENT LOCATION DETERMINATION OF WIRELESS COMMUNICATION DEVICES USING HYBRID LOCALIZATION TECHNIQUES

摘要

Embodiments herein relate to determining the location of a device using hybrid localization techniques. For example, a first technique such as trilateration may be used to determine an approximate location of the device. An error associated with the approximate location may also be implemented to increase the likelihood of locating the device upon applying a second localization technique, such as fingerprinting. Fingerprinting, when applied to the approximate location determined from trilateration, may determine the location of the device, or a more precise location than that determined from trilateration, such that reduced power consumption by the device may be achieved without sacrificing location accuracy.

主权项

1. A method comprising:
receiving, by a user device comprising at least one processor, information associated with one or more access points, wherein the information comprises a respective received signal strength indicator (RSSI) and a respective identification of the one or more access points; determining, by the user device, an approximate location of the user device, the approximate location comprising one or more candidate locations, wherein determining the approximate location of the user device comprises implementing a first localization technique based at least in part on the received information; determining, by the user device, an error associated with the approximate location of the user device; increasing, by the user device, the number of the one or more candidate locations based at least in part on the error; determining, by the user device, a relevant subset of candidate locations based at least in part on a comparison of (i) a plurality of stored locations for an area associated with the received information to (ii) the one or more candidate locations; and determining, by the user device, a location of the user device, wherein determining the location of the user device comprises implementing a second localization technique that compares the received RSSIs to stored RSSIs associated with the relevant subset of candidate locations to determine the location of the user device.